There is no way to obtain the file_key or URL of AWS S3 based on the file_id

[lichao4Java]

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Dify version

0.7.2

Cloud or Self Hosted

Self Hosted (Docker)

Steps to reproduce

{ "event": "message_file", "conversation_id": "933e723c-d778-4031-b8b2-dca7b85d283c", "message_id": "b25a3267-ff19-49f9-93c9-3885214f0bf8", "created_at": 1728088336, "task_id": "1ce7a88c-48a3-4e91-af60-7d6c0a8c4467", "id": "1ec851a0-ff78-46af-8516-978e61ba8581", "type": "image", "belongs_to": "assistant", "url": "/files/tools/7690f33c-67f5-4ee2-af01-4d01fb897a6d.png?timestamp=1728088356&nonce=4f58f055ef2383cc9221d41a9f3f96af&sign=rERQEG68XFr-93TSlNG0mRqSKkXeIokSacgooPbX4kM=" }

The URL has a timestamp and will return 403 Invalid request after expiration, How to obtain the latest URL based on file_id through API or other methods?

✔️ Expected Behavior

You can obtain the URL of AWS S3 based on the file_id

The source code is obtained by querying the file_key based on the file_id and then retrieving the file from storage. How can it be obtained through the API? I deployed it using Docker

❌ Actual Behavior

The URL has a timestamp and will return 403 Invalid request after expiration, How to obtain the latest URL based on file_id through API or other methods?

[dosubot[bot]]

To obtain the latest URL of an AWS S3 file based on the file_id, you can use the get_signed_temp_image_url method from the UploadFileParser class. This method generates a signed temporary URL for the file, which includes a timestamp and a signature to ensure secure access. Here's how you can use it:

signed_url = UploadFileParser.get_signed_temp_image_url(upload_file_id)

This method constructs a URL with a timestamp, nonce, and a signature, which is valid for a limited time as defined by dify_config.FILES_ACCESS_TIMEOUT. If the URL returns a 403 Invalid request after expiration, you will need to generate a new signed URL using the same method ^[1].

To continue talking to Dosu, mention @dosu.

[lichao4Java]

How can it be obtained through the API? I deployed it using Docker

[dosubot[bot]]

To obtain the latest URL of a file based on the file_id through the API in a Docker deployment, you can use the API endpoint that constructs a signed temporary URL. This is done using the get_signed_temp_image_url method from the UploadFileParser class. This method generates a URL with a timestamp, nonce, and signature, which is valid for a limited time.

Here's a brief overview of how you can achieve this:

1. API Endpoint: The endpoint is constructed using the base URL from dify_config.FILES_URL and appending /files/{upload_file_id}/image-preview.

2. Generate Signed URL: Use the get_signed_temp_image_url method to generate a new signed URL whenever needed. This method ensures the URL is valid only for a limited time.

3. Security: The URL includes query parameters for timestamp, nonce, and sign, which are used for security purposes to verify the request.

If you need to automate this process, you can create a script or service that calls this method to generate a new URL whenever the previous one expires ^[1].

To continue talking to Dosu, mention @dosu.